This software rocketed me down my personal journey in mathematics at escape velocity. I first got to play with it on some PowerPC macs in the library at Davidson College. I was 12 years old and just beginning with algebra and geometry. Once I had discovered it, I would spend hours down there just playing with it. Couldn't pull myself away. My only experience had been the boring, limited TI-82.

Being able to directly key in the functions to graph was cool enough. Having them come up instantly and being able to zoom and identify maxima, minima and inflection points with the mouse was awesome. Then one day I was like "hmm, I wonder what happens if I put y and x on the same side of the equation"?

Mind. Blown.

I gained insights playing with this tool that lasted me all the way through high school and well into my minor concentration in university. I doubt my story is unique. Thanks, PacificTech.